SharePoint 2010 UI/browser help urls

Site settings url: http://...../_layouts/settings.aspx
Determine CAML to create site columns  http://url/_vti_bin/owssvr.dll?Cmd=ExportList&List=listguid
Remove web parts from a page http://url/_layouts/spcontnt.aspx?&url=page/_layouts/spcontnt.aspx?&url=page

Delete Web Parts from a page using the browser

Problem: A web part fails, is hidden and you can remove it using the edit mode on a SharePoint page.

Resolution: A custom crafted url will display a list of web parts and allow you to cleanup the page as required. Enter the domain plus http://url/_layouts/spcontnt.aspx?&url=page>

If the page with the problem had the url http://demo1.dev/myarea/printer.aspx

You would enter the url http://demo1.dev/_layouts/spcontnt.aspx?&url=myarea/printer.aspx

More Info

Alternatively Approach: Append ?content=1 to the url and you will be directed as above.

Example:

Page: http://www.demo.dev/sites/sponline/Pages/ViewProperty.aspx

Make it: http://www.demo.dev/sites/sponline/Pages/ViewProperty.aspx?contents=1

You get re-directed to: http://www.demo.dev/sites/sponline/_layouts/spcontnt.aspx?&url=%2fsites%2fsponline%2fPages%2fViewProperty.aspx